Generate me a point of sale design with a design where it shows in an area of ​​60% the products in a card where it shows me an image, the price, the name of the product and the stock, and a button that allows me to add to the cart, and 40% shows a form that allows me to write and / or select a client and has a button that allows registering a client, that has several clients selected, that when clicking on the add button a modal is superimposed on the side of 40% in the client registration form, have a first name, last name, mother's last name, ID, in the cart form show me the discounts and total of the cart